Compared to databases of bulk materials, databases of 2D materials are still few and less developed. Early work used DFT to explore the stability and electronic structures of monolayers of group III-V honeycomb lattices[1]}, [2]} and the class of MX\(_2\)  transition metal dichalcogenides and oxides[3]}. Later, by data-filtering the inorganic crystal structure database (ICSD), 92 experimentally known layered crystals were identified and their electronic band structures calculated at the DFT level[4]}. Another DFT study, also focused on stability and band structures, explored around one hundred 2D materials selected from different structure classes[5]}. To overcome the known limitations of DFT, a database with many-body G\(_0\) W\(_0\)  band structures for 50 semiconducting TMDCs was established[6]}. Very recently, data mining of the Materials Project and experimental crystal structure databases in the spirit of Ref. lebegue2013two, led to the identification of close to one thousand experimentally known layered crystals from which single layers could potentially be exfoliated[7]}, [8]}, [9]}, [10]}. These works also computed basic energetic, structural and electronic properties of the monolayers (or at least selected subsets) at the DFT level.
